Question

The gravitational potential energy of a bird of mass 2.0 kg on a tree branch of height 15 m is most nearly:options:30 J3000 J300 J 15 J3.0 J

Answer 1

Given:

The mass of the bird is m = 2 kg

The height of the tree is h = 15 m

To find the gravitational potential energy.

Step-by-step explanation:

The potential energy can be calculated by the formula

`P.E.\text{ =mgh}`

Here, the acceleration due to gravity is g = 10 m/s^2

On substituting the values, the potential energy will be

`\begin{gathered} P.E.\text{ = 2}*10*15 \\ =\text{ 300 J} \end{gathered}`

Thus, the gravitational potential energy of the bird is 300 J